Sharp PQ30VB11 Datasheet
Low Power-Loss Voltage Regulators PQ30VB11
PQ30VB11
Variable Output Low Power-Loss Voltage Regulator(Built-in Overheat Shut-Down Function)
■ Features
¡Compact resin full-mold package
¡Low power-loss (Dropout voltage : MAX. 0.5V)
¡Overheat shut-down function (keep shut-down output until
power-on again)
¡Variable output voltage (Setting range : 1.5 to 30V)
¡Overcurrent protection type
¡High-precision output type (Reference voltage precision :
±2.0%)
■ Applications
¡Series power supply for TVs and VCRs
¡Switching power supply
■ Outline Dimensions
10.2MAX
7.4±0.2
PQ30VB11
29.1MAX
13.5MIN
●1 ●2 ●3 ●4
Internal connection diagram
1
Specific IC
3
φ3.2±0.1
4-1.4
4-0.6
3-(2.54)
2
4
3.6±0.2
+0.3
-0
+0.2
-0.1
1 DC input (VIN)
2 DC output (V
3 GND
4 Output voltage
minute
adjustment
terminal (V
4.5±0.2
O
ADJ
(0.5)
)
)
(Unit : mm)
2.8±0.2
4.8MAX
15.6±0.5
(1.5)
■ Absolute Maximum Ratings
*1
Input voltage
*1
Output adjustment terminal voltage
Output current
Power dissipation (No heat sink)
Power dissipation (With infinite heat sink)
*2
Junction temperature
Operating temperature
Storage temperature
*3
Soldering temperature
*1
All are open except GND and applicable terminals.
*2
Overheat shut-down function operates at T
*3
For 10s
“ In the absence of confirmation by device specification sheets,SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices
shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device. ”
Parameter Symbol Rating Unit
j
>=110˚C.
(Ta=25˚C)
V
IN
V
ADJ
I
O
P
D1
P
D2
T
j
T
opr
T
atg
T
sol
35
7
1
1.25
12.5
150
-20 to +80
-40 to +150
260
V
V
A
W
W
˚C
˚C
˚C
˚C
· Please refer to the chapter“ Handling Precautions ”.
PQ30VB11Low Power-Loss Voltage Regulators
■ Electrical Characteristics
(Unless otherwise specified, condition shall be VIN=15V, Vo=10V, Io=0.5A, R1=390Ω, Ta=25˚C)
Parameter Symbol Conditions
Input voltage
Output voltage
Load regulation
Line regulation
Ripple rejection
Reference voltage
Temperature coefficient of reference voltage
Dropout voltage
Quiescent current
Overheat shut-down temperature
*4
Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
VIN
VO
RegL
egI
R
RR
ref
V
TeVref
Vi-O
Iq
Tsd
O=5mA to 1A
I
IN=11 to 28V
V
Refer to Fig. 2
j=0 to 125˚C, IO=5mA
T
*4
, IO=0.5A
O=0
I
Fig.1 Test Circuit
VIN
0.33µF
●3
A
●2●1
R2
●4
R1
Iq 390Ω
Vref
V
47µF
+
VO
IO
A
V
RL
Fig.2 Test Circuit of Ripple Rejection
+
ei
~
V
IN
0.33µF
●2●1
R2
●4
●3
R1
390Ω
47µF
+
O
I
eo
V
~
RL
-
-
4.5
1.5
-
-
45
1.225
-
-
-
110
O=Vref X 1+ ----------- =1.25X 1+ -----------
V
[R1=390Ω,Vref =1.25V]
IO=0.5A
f=120Hz (sine wave)
i=0.5Vrms
e
RR=20 log (ei/eo)
R2
R1
-
-
0.3
0.5
55
1.25
±1.0
-
-
130
R2
R1
35
30
1.0
2.5
-
1.275
-
0.5
7
150
UnitMAX.TYP.MIN.
V
V
%
%
dB
V
%
V
mA
˚C
Fig.3 Power Dissipation vs. Ambient
Temperature
P
D1 :No heat sink
P
13
12
11
10
9
8
7
6
5
4
3
Power dissipation PD (W)
2
PD1
1
0
-20 0
Note) Oblique line portion:Overheat protection operates in this
area.
D2 :With infinite heat sink
D2
P
50 100 150
Ambient temperature Ta (˚C)
Fig.4 Overcurrent Protection
Characteristics (Typical Value)
100
80
60
40
20
Relative output voltage (%)
0
0.5 1.0 1.5 2.0
Output current IO (A)
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